The table below shows a summary of the occurrence records for the taxon. A record “with coordinates” is one that has a complete set of latitude and longitude values associated with it, which could be used for distribution modeling and the conservation gap analysis. In preparation for the conservation gap analyses, we classified each record based on whether it was an existing ex situ germplasm sample from a genebank or botanic garden (labeled G, as most records were from genebanks), or a reference observation (labeled H, as most of these records were from herbaria).
Median models across MaxEnt replicates were evaluated using the area under the receiver operating characteristic curve (AUC), the SD of the AUC across replicates, and the proportion of the potential distribution model with an SD of the replicates >0.15.
The map below shows the median, mean, and standard deviation of potential distribution model runs, as well as the predicted presence threshold distribution. The predicted presence threshold distribution was generated by applying a statistically determined threshold value to the median model distribution, and is used in the conservation gap analysis as the potential distribution model. The occurrences used in the modeling process are represented by dots, distinguishing between ex situ germplasm collection (G) and reference sightings (H, for herbaria) records (as available), and the attribute data associated with the points can be viewed by clicking on the dots. The semi-transparent white background reflects the native country-ecoregion area.
Layers can be added to the map using the toggle buttons on the left side. The first layer turned on will be in the bottom position on the map.
The table below shows the ecogeographic variables listed in order of importance based on the occurrence dataset, including whether or not they were used for distribution modeling, following the variable selection process. Predictors were gather or processed based on WorldClim2 source data.
The table below shows the ex situ conservation gap analysis summary. The sampling representativeness score ex situ (SRS ex situ) calculates the ratio of germplasm accessions (G) available in ex situ repositories to reference (H) records for each taxon, making use of all compiled records, regardless of whether they include coordinates. The geographical representativeness score ex situ (GRS ex situ) uses buffers of 50 km radius created around each G collection coordinate point to estimate geographic areas already well collected within the distribution models of each taxon, and then calculates the proportion of the distribution model covered by these buffers. The ecological representativeness score ex situ (ERS ex situ) calculates the proportion of terrestrial ecoregions represented within the G buffered areas out of the total number of ecoregions occupied by the distribution model. A final conservation score for ex situ (FCS ex situ) was derived by calculating the average of the three ex situ conservation metrics. All of the conservation metrics are on a scale from 0-100, with 0 = poor conservation and 100 = comprehensive conservation. The FCS ex situ is used to categorize species, with urgent priority (UP) for further conservation action assigned when FCS ex situ < 25, high priority (HP) where 25 ≤ FCS ex situ < 50, medium priority (MP) where 50 ≤ FCS ex situ < 75, and low priority (LP) for taxa whose FCS ex situ ≥75.
The GRS ex situ map features show the potential distribution model, with previous ex situ germplasm collection points surrounded by a 50 km buffer overlaid. Only germplasm (G) points are displayed on the map.
The ERS ex situ map features show ecoregions within the potential distribution model from which no ex situ germplasm collections have been made. The ecoregion extent has been clipped to be within the potential distribution model of the taxon.There are many cases where the ecoregion area within the potential distribution model extent is very small (e.g., less than 5 cells). Utilize the “All ecoregions” layer and the ERS ex situ legend to help locate these areas.
The table below shows all the ecoregions utilized within the study.
The column ERS ex situ gap ecoregion denotes (True) if
an ecoregion overlaps with the predicted distribution model but is
farther than 50 km from any ex situ conservation
occurrence.
The table below shows the in situ conservation gap analysis summary. The sampling representativeness score in situ (SRS in situ) calculates the proportion of all occurrences of a taxon within its predicted distribution that fall within a protected area. The geographical representativeness score in situ (GRS in situ) compares the area (in km2) of the potential distribution model located within protected areas versus the total area of the model. The ecological representativeness score in situ (ERS in situ) calculates the proportion of ecoregions encompassed within the range of the taxon located inside protected areas to the ecoregions encompassed within the total area of the potential distribution model. A final conservation score for in situ (FCS in) was derived by calculating the average of the three in situ conservation metrics. All of the conservation metrics are on a scale from 0-100, with 0 = poor conservation and 100 = comprehensive conservation. The FCS in situ is used to categorize taxa, with urgent priority (UP) for further conservation action assigned when FCS in situ < 25, high priority (HP) where 25 ≤ FCS in situ < 50, medium priority (MP) where 50 ≤ FCS in situ < 75, and low priority (LP) for taxa whose FCS in situ ≥75.
The SRS in situ feature shows occurrences within the potential
distribution that are outside of protected areas. Values are summarized
by count per cell.
The GRS in situ feature shows the potential
distribution, with distribution occurring within existing protected
areas highlighted.
The ERS in situ feature shows the potential
distribution, highlighting ecoregions in which no protected areas are
present.
The table below shows the descriptions of the ecoregions within the potential distribution, with regard to in situ conservation
The column ’ERS in situ gap ecoregion denotes (TRUE) if an ecoregion overlaps with the potential distribution model but none of that area is within a protected area.
Plot of the exsitu and insitu conservation scores.
Note: Score values of zero will not appear on the chart.
Exsitu : The Sampling Representativeness Score ex situ (SRS ex) calculates the ratio of germplasm accessions (G) available in ex situ repositories to reference (H) records for each taxon, making use of all compiled records irrespective of whether they include coordinates.
Insitu : The Sampling Representativeness Score in situ (SRS in) calculates the proportion of all occurrences of a taxon within its native range that fall within a protected area.
Exsitu : The Geographic Representativeness Score ex situ (GRS ex situ) uses 50-km-radius buffers created around each G collection coordinate point to estimate geographic areas already well collected within the potential distribution models of each taxon and then calculates the proportion of the potential distribution model covered by these buffers.
Insitu : The Geographic Representativeness Score in situ (GRS in situ) compares the area (in km2) of the potential distribution model located within protected areas versus the total area of the model.
Exsitu : The Ecological Representativeness Score ex situ (ERS ex situ) calculates the proportion of terrestrial ecoregions (25) represented within the G buffered areas out of the total number of ecoregions occupied by the potential distribution model.
Insitu : The Ecological Representativeness Score in situ (ERS in situ) calculates the proportion of ecoregions encompassed within the range of the taxon located inside protected areas to the ecoregions encompassed within the total area of the potential distribution model.
Ex situ : The Final Conservation Score ex situ (FCS ex situ) was derived by calculating the average of the three ex situ conservation metrics.
In situ : The Final Conservation Score in situ (FCS in situ) in was derived by calculating the average of the three in situ conservation metrics.
FCSc-mean : The Combined Final Conservation Score (FCSc-mean) was calculated for each taxon by averaging its final FCS ex situ and FCS in situ scores. Taxa were then categorized with regard to the two conservation strategies as well as in combination, with Urgent Priority (UP) for further conservation action assigned when FCS <25, High Priority (HP) assigned when 25 ≤ FCS < 50, Medium Priority (MP) when 50 ≤ FCS < 75, and Low Priority (LP) when FCS ≥75.
Occurrences : The total number of records for the taxon that were evaluated for use within the study.
Occurrences with lat/long: The total number of records that had a valid latitude and longitude pair and were used for spatial analysis. Non valid latitude longitude pairs included but were not limited to: points not on land masses, and records with only one of the two values present.
Germplasm Records (G) : Occurrences in which a living sample (via plant or seed) is present in an ex situ conservation system (i.e., botanical garden, seed bank, genebank, etc.).
Reference Records (H) : Occurrences that have a supporting herbarium or other reference record.
Unique Data Sources: The number of unique database sources from which occurrences of the taxon were gathered.